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Finding the Fourth Proportional to 367,615.90, 551,423.85 and 308,566.90

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Solution

The fourth proportional to 367,615.90, 551,423.85 and 308,566.90 is: 462,850.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,615.90 : 551,423.85 = 308,566.90 : x
  2. Step 2: Convert to fraction form
    367,615.90/551,423.85 = 308,566.90/x
  3. Step 3: Cross multiply
    367,615.90x = 551,423.85 × 308,566.90
  4. Step 4: Simplify right side
    367,615.90x = 170,151,147,980.57
  5. Step 5: Solve for x
    x = 170,151,147,980.57/367,615.90
  6. Step 6: Final answer
    x = 462,850.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.